VU

Distylium stellare

Declining

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Distylium stellare faces severe pressure from rapid urbanization and infrastructure development across its limited range in southern Japan. The species' restricted distribution to specific geological formations makes it particularly vulnerable to habitat fragmentation, as even small-scale developments can eliminate entire subpopulations. Climate change poses an additional threat through altered precipitation patterns that may affect the specialized soil conditions this species requires.

Threat summary

Habitat

Distylium stellare is endemic to rocky outcrops and cliff faces on specific geological substrates in southern Japan. The species typically grows in crevices and shallow soils of limestone and volcanic rock formations, often in areas with high humidity and partial shade.

Rocky areas· major

Conservation measures underway

Ex-situ conservation